Bio Unit 1 Assessment Review

Front

What is a negative feedback loop?

Back

A process in which a system responds to a change by initiating responses that counteract the change, helping to maintain stability.

Front

What is a positive feedback loop?

Back

A process in which a system responds to a change by amplifying that change, leading to an even greater response.

Front

In a negative feedback loop, what happens to the action as a consequence of the response?

Back

The action decreases.

Front

What is an independent variable in an experiment?

Back

The variable that is manipulated or changed to observe its effect on the dependent variable.

Front

What is a dependent variable in an experiment?

Back

The variable that is measured or observed in response to changes in the independent variable.

Front

What is an ecosystem?

Back

A community of living organisms interacting with their physical environment.

Front

What is carrying capacity?

Back

The maximum number of individuals of a species that an environment can sustainably support.

Front

What is overgrazing?

Back

When animals graze on vegetation to the point that it cannot recover, leading to degradation of the ecosystem.

Front

What is the relationship between predator and prey populations?

Back

Predator and prey populations are interdependent; an increase in predators can lead to a decrease in prey, and vice versa.

Front

What is homeostasis?

Back

The ability of an organism to maintain stable internal conditions despite changes in the external environment.